Roll-cleaner.



N0. 7l0,539. Patente d Oct. 7, I902 J. THUMSUN.

ROLL GLEAREB.

(Application filed Nov. 18, 1901.)

(No Model.) 2 Sheets-Sheet l.

WITNEEEE-E INVEN'T'EIR ATTY.

J. THOMSON.

ROLL GLEABEB.

(Application filed. Nov. 18, 1901.)

(No Model.)

Patented Oct. 7, I902.

2 Sheets-Sheet 2.

WITNESSES zfgi INVEN'T' D R ATTY';

UNITED STATES PATENT OFFICE.

JAMES THOMSON, OF PAVVTUOKET, RHODE ISLAND.

ROLL-CLEARER.

SPECIFICATION formingpart of Letters Patent No. 710,539, dated October7, 1902.

Application filed November 18, 1901. Serial No- 82,636. (No model.)

T0 at whmn it HUI/Z] concern.-

Be it known that I, J AMES THOMSON, a citizen of the United States,residing at Pawtucket, in the State of Rhode Island, have invented a newand useful Improvement in RollClearers, of which the following is aspecification.

My invention relates to an improved rollclearer adapted for clearing thelint and waste from the drawing-rolls of cotton-spinning machinery; andit consists in atraversing rollclearer actuated in its reciprocatingmovement over the surface of the revolving roll by means of the sliverwhich is being drawn between the rolls, as hereinafter set forth.

In the accompanying drawings, Figure 1 represents an end view of the toprolls and a transverse section of the lower rolls, showing the positionof my improved roll-clearer between the adjoining sets of drawing-rolls.Fig. 2 represents a side elevation with the forward set of drawing-rollsremoved. Fig. 3 represents a similar side elevation showing theapplication of my improvement to top rolls adapted for a single sliver.Fig. 4 represents the sets of drawing-rolls as in Fig. 1, with a cleareroperating upon both the upper and lower rolls. Fig. 5 represents a sideview.

of the said clearer when removed from the rolls. Fig. 6 represents thesame when arranged for the action of a single sliver. Fig. 7 representsa side view of the upper and lower clearers shown in Fig. 5 when theyare separated from each other. Fig. 8 represents a side view showing theupper and lower clearers connected by means of a plate, as shown inFigs. 1 and 2, the central tongue being extended downward andfrictionally connected with the lower clearer. Fig. 9 represents thesets of drawing-rolls as in Fig. 1, showing a clearer of a differentconstruction. Fig. 10 represents a side view of the clearer shown inFig. 9 when removed from the machine. Fig. 11 represents a partial topview of the rolls of a drawing-frame provided with my improved clearersfor the upper and lower rolls, the hinged cover being broken away toshow the rolls. Fig. 12 represents a section taken in the line 12 12 ofFig. 11. Fig. 13 represents an enlarged face view of the improvedclearers when removed from the rolls. Fig. 14 represents an end view ofthe same.

Fig. 15 represents an under view of the lower clearer.

In the drawings, A A A represent the lower rolls, and B B B the toprolls, of a cottonspeeder.

0 represents the reciprocating guide-bar for delivering the slivers tothe drawing-rolls, and D D the clearers, the said clearers being causedto reciprocate back and forth by'mean s of the downwardly-e xtendingguide-plates E E, which are provided with the slits e e at oppositesides of a downwardly-extending tonguef, the said slits being adapted toreceive the slivers g g, which are drawn by the sets of rolls A B A Band prepared for the spinning operation, the said slits e 9 beingpreferably made fine enough to catch the bunches whichoccuroccasionallyin the sliver, and when the slivers g g are carriedback and forth by the reciprocation of the guide-bar O the resultinglateral movement of the slivers as they pass between the drawing-rollswill be imparted to the clearers, causing them to traverse back andforth along the surfaces of the adjoining top rolls, upon which theyrest, thus keeping the said top rolls clean and free'from lint. V Theapplication of my improvement to a top roll the bosses of which areadapted for a single sliver is shown in Fig. 3, in which the guide-plateE, which extends downward from the clearer D, is provided with a singleslit 6 and made a little wider than the clearer to which it is attached.The clearers D D are preferably made in semicircularforin in theircross-section, as shown in Fig. l, and have their lower bearing-surfacescovered with cloth ct, as usual in top roll-clearers.

A clearer for the lower rolls A A may be combined with the clearer forthe top rolls B B, as shown in Figs 4 and 5, the said clearers beingconnected to each other by means of the wires E E, which are turned soas to form a slit e for receiving the sliver and are loosely held in theperforations made in the upper clearer D. The arms I) b of the saidwires pass through suitable perforations made in the lower clearer D andby springing either inwardly or outwardly serve to frictionally retainthe said lower clearer D in its adjusted position, and in this case asthe slivers g g, which pass between the armsb and b, are being movedback and forth by the reciprocating of the guide-bar C a correspondingmovement will be imparted to the combined upper and lower clearers D D.WVhen the clearers are employed on a spinning-frame, the wire arms Z)and b may be so bent as to lie close together, as shOwn in Fig. 6, andin this case the yielding elasticity of the resilient arm I) will serveto cause the guide E to automatically fit slivers of different sizes,the said slivers in their passage between the said arms serving to causetheir required separation. Instead of employing the guide-wires E E toconnect the upper and lower clearers they may be connected to each otherby means of a plate E, (shown in Fig. 8,) the lower clearer D beingfrictionally connected to the said tongue, soas to be capable ofadjustment thereon.

Another form of the clearer is shown in Figs. 9 and 10, in which theclearer D is made in cylindrical form, with the usual covering of clotha, and having at its ends projecting journals 0 c, which are snugly heldin the bearings cZ cl of the guide-plate, and in this case when thecloth covering of the cylindrical clearer becomes worn in use theclearer can be turned slightly, so as to bring into action a freshwearing-surface, and so on until the cloth cover is entirely worn, thefrictional bearings d 01 serving to retain the clearer in its adjustedposition.

The slits g g in the plate E may be made so that the end of the slitwilljust rest upon the sliver, and in this case when the distancebetween the rolls is to be increased in order to operate upon a'longerstaple then the resulting fall of the clearer will serve to deflect thesliver downward, and thus increase the length of the sliver between therolls, as shown in Fig. 9, so that in this case the adjustment may beeffected by the movement of the top rolls alone without moving thebottom rolls, which latter adjusting movement requires a considerabletime.

The application of my improvement in the roll-clearers to the rolls of adrawing-frame is shown in Figs. 11, 12, and 13, in which F representsthe table of the drawing-frame; B, the top rolls; A, the under rolls,and G the sliver passing between the rolls. The upper and lower clearersD D may be made of wood in triangular form and connected with each otherby means of the spiral springs H H, which at their upper ends aresecured to the upper clearer D and at their lower ends are provided witha head It. The lower clearer D is provided at its opposite ends withnotches Z Z, adapted to receive the springs H H, the heads 7c 76 ofwhich serve to support the lower clearer yieldingly in its properbearing position upon the under surface of the lower rolls, and at thesame time the said springs may be readily moved out of the said notchesZ l to cause the separation of the upper and lower clearers from eachother, and whenever it is desired to remove the accumulated waste fromeither the upper or lower clearer then by pulling upon the buttonn ofthe said clearer the yielding of the springs H H will allow the removalof the clearer from the rolls to the required distance for the purposeof cleaning. The upper clearer D is provided with the downwardlyprojecting wooden guide-pins K K, which are adapted to embrace theopposite edges j j of the sliver. The separate slivers g g first passfrom the holding-cans through the stationary guideeyes h h and thence tothe traversing guide I of the machine, and by means of said traversingguide the collected slivers are caused to reciprocate back and forth ina single sliver G. The lateral edges jj, by engagement with the inneredges m m of the guide-pins K K, will serve to impart the requiredtraversing movement to the clearers D D.

A beneficial effect is produced upon the sliver when it is pressed atits sides as it is being drawn by the rolls, and the yielding wires ofthe guides E may be made of the required gage to allow theinconsequential smaller bunches to pass through the slit by thespringing of the wires and to stop the passage of the larger bunches,which would injure the quality of the yarn, and when the upper and lowerclearers are employed the waste collected by the clearers will causethem to be moved apart, so as to retain the collected waste and keepitaway from the running sliver.

I claim as my invention- 1. The combination of adjoining sets of upperand lower rolls, with a roll-clearer and a sliver-guide which extendsbetween the rolls from the clearer, and serves by engagement with thesliver to transmit the lateral movement of the sliver to the clearer.

2. The combination of adjoining sets of upper and lower rolls, with theupper and lower clearers, and a connection which extends from the one tothe other between the sets of rolls, and serves to connect the clearersfor simultaneous traversing movement.

3. The combination of the adjoining sets of upper and lower rolls, withthe upper and lower clearers, and a sliver-guide extending between therolls, and connecting the clearers with each other.

4. The combination of the adjoining sets of upper and lower rolls andthe upper and lower clearers, connected with each other, with theguide-bars which embrace the edges of the sliver, and spring means forholding the clearers in yielding engagement with the rolls.

5. The combination of the adjoining sets of upper and lower rolls, andthe upper and ranged between the said sets of rolls to emlower elearers,with spring means connected brace the edges of the sliver and partake ofto one of the clearers and having a head the lateral movement thereof.

adapted for engagement with a holding-notch JAMES THOMSON. 5 in theother clearer. Witnesses:

6. The combination of the adjoining sets of SOORATES SGHOLFIELD,

upper and lower rolls, with a sliver-guide ar- CLINTON O. LOVEJOY.

